Heres somthing strange, when I check my auto trans fluid and the engine is cold but running the fluid level barely touches the bottom of the stick. But when the engine is hot and running the fluid level goes just over the max marking on hot portion of the dipstick.By the way the trans shifts fine and the fluid is a nice deep red. I just can't believe that the fluid expands that much under heat.Any opinions?My only thought is this, I bought the car used could someone have replaced the original dipstick with one for another engine?